class_name ConversationIntentDefinition
extends Resource

@export var intent_id: StringName
@export var response_intent_ids: Array[StringName] = []
@export var template_catalog_id: StringName


func validate() -> Array[String]:
	var errors: Array[String] = []
	if not ConversationSemantic.is_valid_id(intent_id):
		errors.append("intent_id is invalid")
	if template_catalog_id.is_empty():
		errors.append("template_catalog_id is empty for '%s'" % intent_id)
	var seen: Dictionary = {}
	for response_intent_id in response_intent_ids:
		if not ConversationSemantic.is_valid_id(response_intent_id):
			errors.append("response intent ID is invalid for '%s'" % intent_id)
		elif seen.has(response_intent_id):
			errors.append(
				"duplicate response intent '%s' for '%s'" % [response_intent_id, intent_id]
			)
		else:
			seen[response_intent_id] = true
	return errors


func duplicate_definition() -> ConversationIntentDefinition:
	var copy := ConversationIntentDefinition.new()
	copy.intent_id = intent_id
	copy.response_intent_ids = response_intent_ids.duplicate()
	copy.template_catalog_id = template_catalog_id
	return copy